diff --git a/Jenkinsfile b/Jenkinsfile
index a0c0960..9cd2abb 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -3,10 +3,9 @@ pipeline {
 
         parameters{
                 string(
-                    defaultValue: 'maciejsobkowiak',
-                    description: 'Kaggle username',
-                    name: 'username',
-                    trim: false
+                    defaultValue: '1000',
+                    description: 'cutoff',
+                    name: 'CUTOFF'
                 )
         }
 
@@ -19,7 +18,7 @@ pipeline {
         stage('sh: Shell Script') {
             steps {
                 sh 'chmod +x preparations.sh'
-                sh './preparations.sh'
+                sh './preparations.sh $(CUTOFF)'
             }
         }
         stage('archiveArtifacts'){
diff --git a/preparations.sh b/preparations.sh
index 97a8ed8..1ead4f1 100755
--- a/preparations.sh
+++ b/preparations.sh
@@ -4,7 +4,7 @@ curl -OL https://git.wmi.amu.edu.pl/s434784/ium_434784/raw/branch/master/who_sui
 head -n 1 who_suicide_statistics.csv > names.csv
 
 # Randomizacja zbioru.
-shuf who_suicide_statistics.csv > data.shuf
+sed 1d who_suicide_statistics.csv | shuf > data.shuf
 #cp who_suicide_statistics.csv data.shuf
 
 # Podzial na 3 pozbiory
@@ -20,6 +20,7 @@ head -n $DEV data.shuf | tail -n $TEST  > data.dev
 head -n $NUMROWS data.shuf | tail -n $TRAIN > data.train
 
 echo "Test rows ${TEST}"
-echo "Dev rows ${TEST}"
+echo "Dev rows ${DEV}"
 echo "Train rows ${TRAIN}"
-echo "All number of rows ${NUMROWS}"
\ No newline at end of file
+echo "All number of rows ${NUMROWS}"
+echo "$1"
\ No newline at end of file